import java.io.*;

public class Solution {
    public static void main(String[] args) throws IOException
    {
        int sum = 0;
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String infILE = reader.readLine();
        String outfILE = reader.readLine();

        //String infILE = "K:/data.txt";
        //String outfILE = "K:/data2.txt";

        FileInputStream fileInputStream = new FileInputStream(infILE);
        FileOutputStream outputStream = new FileOutputStream(outfILE);

        byte[] buffer = new byte[0];

        if (fileInputStream.available() > 0)
        {
            //читаем весь файл одним куском
           buffer = new byte[fileInputStream.available()];
           int count = fileInputStream.read(buffer);
        }
        for (int i = 0; i < buffer.length; i++)
        {
            outputStream.write(buffer[buffer.length-i-1]);
        }

        outputStream.close();
        fileInputStream.close();
    }
}